Heresy at foot. Read on >>>>>>>
Silicon is a high hysteresis material that stores energy. Case in point; a million years ago when the world was young I used to fly control line racing model airplanes. One of the events was called Fast Rat Race. Tim Gilott from CA designed an airplane ( the Shark Rat:https://www.airagestore.com/planes/plans/control-line/gillot-shark.html) that was way out of the box for that period. These were model airplanes that were capable of 140+mph flown on 2 - 60' music wires and 3 pilots to a circle. Scary event, but way fun! I didn't fly them. I built them and was the pit guy. My pilot told me that those speed were f*****g evil, so we went to FAI Tem Race. Yet another story for people that flew control line model airplanes.
Tim's designs were bleeding edge and so the local contingent built 4 of them. 2 guys went with Tim's advice of using Mortite caulk to bed the fuel tank into the Harter speed magnesium pan the motor was mounted in. These airplanes were scary fast. A couple of builders decided Tim was stupid and used silicone to bed the tanks into the speed pans. They would accelerate from the pit stop, make a half a lap, foam the fuel and the motors would quit. These guys bitched about how bad the design was to no end. When we finally convinced them to use Mortite, the engine runs became consistent from launch to the pit stops. Tim, being the ultimate competitor listed silicon. He admitted to us later that he didn't use silicon, but Mortite, too. Yes, he was a 'rat', but a great guy. He just wanted to win!
It was then that I determined that silicon was vibration's friend.
I do not use silicone for anything except for sealing glass.
YMMV...